<template>
  <div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea placeholder="请输入要BB的内容（做多吐槽120字）" maxlength="120" v-model="msg"></textarea>

    <mt-button type="primary" size="large" @click="addComment">发表评论</mt-button>

    <div class="cmt-list">
      <div class="cmt-item" v-for="(item,index) in commentsList" :key="index">
        <div class="cmt-title">
          第{{index+1}} 楼&nbsp;&nbsp;用户：{{item.user_name}}&nbsp;&nbsp;发表时间：{{item.add_time | fordate}}
        </div>
        <div class="cmt-body">
          {{item.content === 'undefined' ? '他很懒，什么都没有留下' : item.content}}
        </div>
      </div>

    </div>

    <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
  </div>
</template>
<script>
import { Toast } from 'mint-ui'
export default {
  data(){
      return {
          pageindex:1,
          commentsList:[],
          msg:''
      }
  },
  created(){
      this.getComments()
  },
  methods:{
        getComments(){
            this.$http.get("api/getcomments/"+this.id+"?pageindex="+this.pageindex).then(result=>{
                //   console.log(result)
                if(result.status === 200 && result.data.status === 0){
                    this.commentsList = this.commentsList.concat(result.data.message)
                }else{
                    Toast('请求失败！')
                }
            })
        },
        getMore(){
            this.pageindex++;
            this.getComments()
        },
        addComment(){
            // 校验是否为空内容
            if (this.msg.trim().length === 0) {
                return Toast("评论内容不能为空！");
            }
            this.$http.post('api/postcomment/'+this.$route.params.id,{content:this.msg.trim()}).then(result=>{
                // console.log(result)
                if(result.status === 200 && result.data.status === 0){
                    var newComment = {
                        user_name: "匿名用户",
                        add_time: Date.now(),
                        content: this.msg.trim()
                    }
                    this.commentsList.unshift(newComment)
                    this.msg = ''
                }else{
                    Toast('添加评论失败！')
                }
            })
        }
    },
  props:["id"]
}
</script>
<style lang="less" scoped>
.cmt-container {
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }

  .cmt-list {
    margin: 5px 0;
    .cmt-item {
      font-size: 13px;
      .cmt-title {
        line-height: 30px;
        background-color: #00eeff;
      }
      .cmt-body {
        line-height: 35px;
        text-indent: 2em;
      }
    }
  }
}
</style>


